Kiểm soát hơi thở

• 00:07
• 00:30
• 00:53
• 01:15
• 01:38
• 02:01
• 02:24
• 02:46
• 03:09
• 03:32
• 03:54
• 04:17
• 04:40
• 05:03
• 05:25
• 05:48

Describes the game between top and bottom and the control of the breath of the bottom.